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View compareScientific Name: Clea helena
Category: Freshwater Invertebrates
Don’t let the swirled yellow-and-brown candy-striped shell fool you—this snail means business. The Assassin Snail (Clea helena) is your tank’s secret weapon against pest snail infestations, patrolling the substrate like a tiny, patient predator. With stealth and strategy, it burrows into the sand and lies in wait… until a clueless pond snail wanders too close. Then—bam!—nature’s tiniest hitman strikes.
Native to Southeast Asia, Assassin Snails are peaceful toward shrimp, fish, and plants, but deadly efficient against unwanted snails like ramshorns, bladder snails, and Malaysian trumpet snails. They’re also wonderfully decorative, adding a pop of striped character to any freshwater setup.
Shell: Cone-shaped with alternating yellow and dark brown bands
Size: Up to 1 inch (2.5 cm)
Behavior: Burrowing ambush predator
Lifespan: 2–3 years
Reproduction: Lays eggs; slow to reproduce in typical home aquariums
Temp: 72–82°F (22–28°C)
pH: 7.0–8.2 (prefers harder water)
Substrate: Sand or fine gravel (for burrowing)
Diet: Other snails, leftover food, protein-rich sinking pellets
Tank Size: 5+ gallons (for one; more if you want a task force)
Keeps pest snail populations under control
Does not harm shrimp, plants, or peaceful tankmates
Beautiful shell adds ornamental flair
Low-maintenance and hardy
Great for bio-balanced aquascapes
After pest snails are under control, supplement with protein-rich foods like bloodworms or shrimp pellets—a hungry assassin will still want a mission! 🐌💀
Want to control their population naturally? Feed sparingly and add Assassin Snails if needed—they'll keep things balanced without harming your plants or shrimp. 🐌🔄
Complete your shrimp order with some vibrant plants! They provide essential hiding spots and enhance the natural look of your tank, creating a healthier, more enriching environment for your shrimp. Add plants to your order for a thriving, beautiful setup!
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Size: Juvenile/Adult
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